`information_schema.domain_constraints.*`

show items implemented by

any at least two only one database all databases

relation	column	mysql	mariadb	tidb	postgres	cockroachdb	mssql
`domain_constraints`
	`constraint_catalog`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER`: 7.4-9.6 `SQL_IDENTIFIER NULL`: 10-15	unsupported	`NVARCHAR(128) NULL`: azuresqldb-current-sql-server-ver15
	`constraint_name`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER`: 7.4-9.6 `SQL_IDENTIFIER NULL`: 10-15	unsupported	`SYSNAME NULL`: azuresqldb-current-sql-server-ver15
	`constraint_schema`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER`: 7.4-9.6 `SQL_IDENTIFIER NULL`: 10-15	unsupported	`NVARCHAR(128) NULL`: azuresqldb-current-sql-server-ver15
	`domain_catalog`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER`: 7.4-9.6 `SQL_IDENTIFIER NULL`: 10-15	unsupported	`NVARCHAR(128) NULL`: azuresqldb-current-sql-server-ver15
	`domain_name`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER`: 7.4-9.6 `SQL_IDENTIFIER NULL`: 10-15	unsupported	`SYSNAME NULL`: azuresqldb-current-sql-server-ver15
	`domain_schema`	unsupported	unsupported	unsupported	`SQL_IDENTIFIER`: 7.4-9.6 `SQL_IDENTIFIER NULL`: 10-15	unsupported	`NVARCHAR(128) NULL`: azuresqldb-current-sql-server-ver15
	`initially_deferred`	unsupported	unsupported	unsupported	`CHARACTER_DATA`: 7.4-9.6 `YES_OR_NO NULL`: 10-15	unsupported	`VARCHAR(2) NULL`: azuresqldb-current-sql-server-ver15
	`is_deferrable`	unsupported	unsupported	unsupported	`CHARACTER_DATA`: 7.4-9.6 `YES_OR_NO NULL`: 10-15	unsupported	`VARCHAR(2) NULL`: azuresqldb-current-sql-server-ver15